WHEELS ARE MEASURED in mm (height size) and A (durometer/hardness). A higher "mm" number means faster wheels. A higher durometer "A" number means harder wheels. Harder wheels last longer.
72mm/80A WHEELS PROVIDE EXCELLENT PERFORMANCE and are the ideal replacement wheel size for most kids skates.
INCLUDES SG5 BEARINGS AND SPACERS for convenient replacement
LESS FRICTION AND INCREASED SPEED are two of the main benefits from the SG5 silicone/grease mixture.
THE LEVEL OF PRECISION, TOLERANCE AND SPEED is indicated by the number at the end of the bearing. The higher the number, the greater the level.
Rollerblade wheels are durable, soft enough to absorb vibration and provide excellent grip so that inline skaters enjoy a smoother ride. SG5 Bearings. SG stands for silicone grease. The higher the SG rating the faster and smoother the bearing will spin. The silicone grease protects bearings from the elements and allows the wheels to spin properly while keeping them well lubed. Includes 8 bearings.